using System;
using System.Collections.Generic;
using System.Text;

namespace PlayTime
{
    public class ContractBridge:Bridge
    {
        private static ContractBridge singleInstance = null;
        public static ContractBridge getInstance()
        {
            if (singleInstance == null)
            {
                singleInstance = new ContractBridge();
            }
            return singleInstance;
        }
        private ContractBridge()
        {
        }
    }
}
